Page 56 - ACB-E1.2-E2.2-E4.2-E6.2

Continued from the previous page ABB | SACE Emax 2
Fault Possible causes Suggestions
Current below the minimum Correct operating condition.
threshold that can be displayed
Incorrect frequency setting Set frequency
Measurements Harmonic distortion and/or crest
incorrect or absent factor off range Correct operating condition.
(current, voltage, Incorrect connection between Check connections between isolation
etc) isolation transformer and transformer and Measurement
Measurement module module
Rated Voltage parameter setting
error Set the correct parameters
The PIN has been disabled or has
The PIN is not already been entered in the same Operating condition correct; consult
required chapter relating to the PIN
programming session
Contact ABB or consult document
PIN error PIN wrong or lost
1SDH001501R0001
Check Trip coil connection and
Trip coil is not connected properly messages on display
It is not possible to CB trip signal has not been reset Press the reset pushbutton
perform the trip test
The busbar current is greater than Correct operating condition.
zero
1. If closed, open CB in the manual
mode and check changed status.
2. Press iTest, check that the signal
has disappeared from the display and
One or more of the following
TRIP fail signaling: conditions: the general status of the alarms.
Trip Fail command • Trip coil not working 3. Check the conditions of the wiring
and internal contacts
(BF) • status contacts not working 4. Working in safety conditions, close
• faulty internal wiring
the CB and perform a trip test via the
trip unit

Contact ABB if problems persist
The expected trip Trip excluded Operating condition correct; enable
does not occur trip if necessary
Wrong threshold/time/curve selected Correct parameters
Trip times different Thermal memory enabled Disable it if it is not necessary
than expected Zone selectivity enabled Disable it if it is not necessary
Incorrect neutral selection Modify the neutral selection
Rapid trip with linst trip Correct operating condition with
I3=Off short circuit at high current
High ground-fault Incorrect selection of the sensor Set internal or external sensor
current, but no trip Function G inhibited owing to high Operating condition correct (see
occurs current protection description chapter)
Opening data not No auxiliary power supply and/or
displayed battery low Correct operating condition.

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